Profiling machine



Feb. 18, 1941. J. RoLoFF :s1-A1.

PROFILING MACHINE Filed July 18, 1939 4 Sheets-Sheet 1 Feb. 18, 1941. J. RoLoFF Emi.l

PROFILING MACHINE Fild July 1a, 1939 4 Sheets-Sheet 2 Feb. 18, '1941. J. RoLor-'F ErAL PROFILING MACHINE Filed July 18, 1959 4 sheets-sheet s Feb.r18,1941. 'ROLQFF ErAL 2,232,138

' Y PROFILING MACHINE Filed Ju1y 18, i939 4 sheets-sheet 4 Fija through.l

Patented Feb'. 1s, 1941 UNITED STATESA PROFILING MACHINE Johannes Roloff, Schonebeclr, and Bernd Zingsheim, Weimar, Germany, assignors to Junkers Flugzeug und Motorenwerke Aktiengesellschaft, Dessau, Germany, a corporation ot Germany Application July 1.8', l1939, Serial No. 285,048 In Germany July 21, 1938 zo claims. (cl. 90-13" This invention relates to improvements in proling machines, and refers primarily to such machines intended to finish various structural sections and the like as the latter are fed there- It is an'object of the invention to provide protiling machines wherein structural sections and the like are attached to a template and shaped longitudinally, either straight or tapered, to conform to the profile of the template. Thus the machine is primarily adapted ,for the production of a quantity of similar workpieces. Another object of the invention is to provide such'a profiling machine wherein the workpiece and the template attached thereto are fed/longitudinally between rotary tools;v wherein followers extend from carriages in which the tools Vare mounted; and wherein means are provided for retaining the followers in constant contact with 2o opposite sides ofy the template as the latter is fed "between them, either when the .template is straight or longitudinally tapered, either vertical-` l ferent portions of the Work.

Another object of the invention is to provide a proling machine wherein means are provided for materially reducing the possibility of chips coming between the template and the `followers -or in-` terferin'g with the operationof other portions of the machine, when the rotarytools employed are in the form of stock removing cutters; and wherein means are provided for free discharge of such chips.

Another object of the invention is to provide a profiling machine wherein a workpiece may be longitudinally shaped by any preferred type of rotary tools, either stock removing cutters vor rolls.

Another object of the invention is to provide a prolingmaehlne which is relatively cheap and simple to manufacture, and with which workpieces may be much more cheaply and expeditiously processed.

Having thus briefly set forth some of the objects and advantages of the invention, we will nowA proceedto describe one preferred general embodi-ment thereof and one modied form of 4actuating the pressure rollers, with the aid of the accompanying drawings, in which:

Figure l1 is a perspective view of the machine. 5

Figure 2 is a transverse section through one of the pressure members mounted in the base.

Figure 3 is a transverse section showing a modiiied form of pressure member. 4

Figure 4 is a transverse view showing the cut- 1g ters and the work in section; the cuttersin this instance being arranged to machine all the edge faces of. a T-shaped structural section.

Figure 5 is a similar view showing cutters ma'- chining the undersides of the anges .and both 15 sides of the web of a T-shaped section.

Figure 6 is a diagram showing the sequence of operations andthe remaining stock left on a T- shaped structural section.

'Figure '7 is a perspective view showing the tem- 20 plate and the work supported thereunder.

Figure 8 is a diagram showing the operation of the machine.

Figure 9 is a diagram showing a piece of flat stock and the material'removed therefrom. 25

Figure 10 is a diagrammatic view showing the arrangement of cutters operating on the edge faces of a piece of at stock, and

Figure 11 is a diagrammatic view showing a cutter machining across the entire width of one 30 side thereof.

Referring first -to Figure 1, I designates the bas of the machine over the table 3 of which a work guide 2 is provided. The underside of the latter is maintained parallel with the table 3 and at its 35 extremities has depending and transversely opposed frames 4 through which the extremities of the work extends. Extending downwardly from the frames 4, preferably centrally of their width are pillars 'which are vertically movable in ap- 40 propriate guide openings 5a formed in the base I. Mounted horizontally in the bed I is a spindle 'I provided at one extremity with an operating wheel 9 andhaving pinions 8 fixed thereon each of which is in engagement with a rack 6 which 45 extends vertically upon one of the said pillars 5.

Thus by rotation of the handwheel. 9 the'height of the work guide 2 above the table 3 may be adjusted.V To prevent accidental vertical movement of the guide 3 a ratchet wheel I0 is secured upon 50 the spindle 1 for engagement -With a suitably mounted dog II.

The work I4, shown in the drawings in the form of a T-shaped structural section, is secured as by screws SI to the underside of a template I5 55 I5 for longitudinal movement between them and` the said rollers I8. Since both the supports I6 vand I1 are the same I will describe the embodithe upper side of which is held against double anged -rollers I8 rotatably supported from the work guide 2, and a plurality of supports I6 and l1 are employed for engaging the underside of the work I4 and holding the latter andthe template ment of one of them shown in Figure 2.

Projecting downwardly through an opening formed in the ta'ble 3 is a cylinder 22v which, in the present instance, is shown welded to the undersideof the said table. Mounted for movement in the cylinder 22 is a plunger 2l having a restr 2 0 extending laterally on both sides at its upper extremity. Rotatably mounted at lits opposite ends in upturned portions 20a of the rest 20 is a spindle 23 provided with a relatively steep thread towards each extremity. The thread towards one extremity is right handed and -towards the other extremity left handed. Secured around the spindle 23 centrally of its length is a pulley 3|'. Two opposed slides 24 are mounted upon the rest 20 for transverse movement towards and from one another. Extending downwardly from each slide 24 is an apertured projection 25 through which the spindle 23 passes, and provided in the said slide 24 and projections 25 are pins 26 which engage the right and left hand thread respectively on the spindle 23.

Supported for rotation in each slide 24 is a pressure roller 28.- .The axes of these rollers are inclined to the work so that the outwardly di.-

rected V-shaped faces of the rollers contact portionsl ofv both the base and the web of the T-shaped work I4. Resting against-the base of the frplunger 2l, which is apertured, is one extremity of a spring 30 the other extremity of which rests upon the base of the cylinder22, whichis also apertured. The spring 30 tends to force the plunger 2I upward and thus move the pressure rollers vertically towards the work.

One extremity of a rope 32, in each support I6 and I1," is wound around a spool 34 located beneath that support, and the spools are secured to a common shaft 35 (Figurel) mounted for rotation in the base I and/provided at one extremity with an operating wheel 36. By rotation of the latter both spools 34 are rotated simultaneously. p

'I'he rope 32 extends'upwardly from its spool 34 through the apertured portions of the cylinder 22 and plunger 2l and passes aroundthe pulley 3l, its adjacent extremity being securedA to one end -of a coil spring 33 (Figure 1). which is strong enough to hold the rope taut and to cause rotation o! the spindle 23. Consequently when the shaft 35 is rotated not only is the plunger 2l moved upwardly by the spring 30 but the spindle 23 is also turned so that both the slides 24 are moved -towards one another, thus the central portions of the peripheries of the pressure rollers 28 are brought firmly into engagement with the corners of the work I4 formed between their opposite base anges and the opposite sides of the web thereof. Provided around the plunger 2 I'isa clamping device, in the present instance in the form of a split ring 39, so that by rotation of a threaded lock rod 38 the plunger may be held against accidental vertical movement. It will be noted that the split ring 39 is housed between the underside of the table 3 and a ange formed within the cylinder 22 to prohibit its vertical movement. To prevent rotary movement of the plunger 2| in the cylinder 22 a keyway 40 is formed in the latter to receive a key 4I carried by the said plunger.

In the modiiied support arrangement shown in Figure 3liquld pressure is employed for its operation. A.exible belt is attached at its extremities to the slides 24, passes around guide rollers 45a mounted upon the base I and' also around a head 46 carried on one extremity of a piston rod 41. Thevf slides in this case are urged apart by a spring 54. The rod 41 extends through packing provided in the base of the plunger 2I `around the opening formed in the latter and der 22 and open into the latter between the base' of the plunger 2I and the piston 48. When theinlet Valve 52 is opened, and the valve 53 closed, liquid pressure is exerted upon the plunger 42l to raise the latter and the slides 24 thereon, and also upon the piston 48 to draw the rod 41 downwards thereby' lowering the head 46 and drawing the slides 24 towards one another against the tension of the spring 54 by pulling the elastic belt 45. Obviously when the valve 53 is opened and the'liquid pressure released the weight of the plunger 2| and the slides 24 thereon causes these parts to move downward and the elasticity of the spring 54 raises the piston 48.-

A feed screw 63 is supported in the base I and extends transversely of the latter to cooperate with two transversely opposed carriages 6I and 62 on opposite sides of the machine. These carriages are moved towards and from one another along a path at right angles to the direction of travel of the work I4 by rotation of the said screw which -is provided with right and left hand threads respectively towards opposite extremities to obtain this relative movement. Here it may be also noted that the carriages are positioned betweenthe supports I6 and I1.

Secured on one outwardly projecting extremity -of the feed screw 63 is a handwheel 64, and xed adjacent thereto on the said screw is a pulley 65. A rope 66 is wound around the latter and has one extremity secured `thereto, and the opposite exmounted for engagement with a cooperating thread in the base I and having an operating wheel 69 xed on its outerextremity. `By turning the spindle 68 tension on the spring may be either increased or reduced so that the pull exerted on the rope 66 tending to turn the feed screw 63 may be varied. The rope is so wound around the pulley 65 that the spring 61 tends to move the carriages 6I and 62 towards one another, and is intended to maintain rotary tools 60, which in the present instance are shown in the form of cutters: mounted on the said carriages in Aproper contact with Work which is to be longitudinally tapered.

Mounted for rotation in the carriages 6I and 62 are spindles 10 which are inclined both to one another and also to the path of travel of the work i I4, so that the rotary tools 60 secured thereon through a belt 12 passing around a pulley 1Ia on the shaft of the said motor and also around a and l16 projectinwardly from the carriages'l ticularly when longitudinally tapered templates aaai- 38 second pulley k13 on the tool spindle;` be clearly seen from Figures 4 and 5`1'followers'15 and I2` respectively to engage opposite sides ofthe template I5, and are retained thereagainst, parare being moved between the scid followers, by the mechanism including the: rope 6,8 and spring 61 hereinbeforedescribed.` j s vA longitudinal feed is imparted to the template I5 Iand the workpiece I4 inthe following manf ner. On lthe work` guide 2 a housing 80 is provided having a shaft 82a rotatably mounted therein. On the latter a sprocket wheel 82" is secured which engages a chain 8 I` extending longitudinally along the top of the template I5 and secured to the extremities of the latter as vby screws 92. The shaft 82a is suitably driven. In the present case a wormwheel 83 is provided thereon which meshes with a worm 84 mounted for rotation in the said housing 88 and having a sprocket wheel 84a suitably connected thereto. A chain 84o passes both around the 4sprocket 84a and also around a second sprocket 85a xed on the shaft -85 of a motor 86, the latter beingv mounted upon the said housing 80, Clearance for it will be clearly seen that by making the temthe passage of the chain 8I is provided beneath the double flanged rollers I8 so that it may pass freely thereunder. A downwardly `and outwardly directed passage 81 is formed through the base I so thatchips may fall freely therethrough whenv tools o-f the stock `removing type shown in the drawings are being utilized.

In'Figures 4 and 5 the tools shown `are of the stock removing type. The cutters 60 and 60a, Figure 4, are adapted to remove stock from the edge faces of the work as shown at 60e and 60f respectively in Figure 6, and the cutters 60h, Figure 5, are adapted to finish the inner side of the base and the sides of the web of the workpiece I4 as shownat 60g in Figure 6..

From the perspective view shown in Figure 7 plate I5 of longitudinallyincreasing thickness the depth of the'workpiece I4-is longitudinally correspondingly decreased; and. also that by longitudinally decreasing the width of the template I4 the width of the work is correspondingly.V decreased. l

Referring to the diagram shown in Figure 8, if the workpieces are materially longer than `the machine, as is usually the case, we prefer to utilize roller stands 90 to support its extremities for free passage thereover. It will also be noted that the rotary tools 60 turn in the opposite direction to .the pressure rolls on the supports v of the said supports and one above the tools 60.

The operation of the supports whereby the pressure rollers 28 are moved upwardly and inwardly is fully described in the foregoing. The work guide 2 must meanwhile have been set `at the required height for vertically positioning the work I4 relative to the rotary tools 60. The chain which extends longitudinally of the template and 'isfsecuredf to both extremities thereof extends be.-

`neath the rollers I8 and "in engagement'withithe sprocket wheel 82 so that upon operation-of the motor 86 `the Vwork is fedlthrough the machine. The motors 'II drive the tools 60, and the spring "actuated `mechanism hereinbeforedescribed retains the followersl 'I5 and 16 in contact with opposite sides of the template I5 sol that the work is profiled as required. i f

From thev foregoing it will be clearly seenthat cessfully employed if either stock removing cutters or rolls are utilized.

What we claim is: 1. A profiling machinercomprising a. plurality of rollers some adapted to bear against a template and some to bear against a workpiece secured thereto, said rollers being adapted, to permit movement of the template and workpiece between them, means for feeding the template and workpiece between 'the rollers, rotary processing tools mounted in the machine, and followers adapted to engage vthe template rigidly held relative to the axes ofthe tools. f

2. A proling machine` comprising the combination set forth in claim 1, wherein automatic means are provided for exerting pressureupon lthe rollers to retain the template and work firmly engaged between them -for movement in a single plane. i y,

3.(A. profiling machine comprising the combination set forth in claim l, wherein -the rollers to engage the workpiece are formed to engage opposite corners of the latter, and means tending to move these rollers towards one another and towards the other rollers, i

`5. A profiling machine comprising the comv.means are provided for 'retaining the' followers in contact with the template.

bination set forth in claim 1, whereinautomatic v means are provided for retaining the followers in contact with opposite sides ofv the template, and the tools arepositioned to operate on opposite sides of the workpiece. N

6. A profllingvmachine comprising the combination Vset forth in claim 1, wherein carriages are mounted for movement on opposite sides of the machine, said tools and followers being supported on said carriages, and a common means for moving both the carriages either towards or away from one another.

7. A profiling machine comprising the combination set forth in claim 1, wherein carriages are mounted for movement on opposite sides of the machine, said tools and followers being supported by the carriages, a feed screw for moving both the carriages towards or away from one another, and automatic means adapted to rotate the feed screw and hold the followers in engagement with opposite sides of the template.

8. A profiling machine comprising the combination set forth in claim 1, wherein the means for feedingi the templateconsists of chain adapted to be secured to opposite extremities thereof, a sprocket wheel in engagement therewith, -and means for driving the sprocket wheel.

9. A profiling machine comprising the ccm bination set forth in claim l, `wherein means are provided for adjusting the height ot' the rollers against which the template is adapted to bear `whereby thework may vbezset vertically `relative t the tOlS. i.

S -Aproling machine. comprising a. base, a guidesupported thereby, vrollers carried by the guidela plurality of lsupports mounted in the basey-.pressure rollers mounted on the supports adapted to engage a work piece and force a template secured thereto into engagement with the 'rst namedl rollers, means in the supports adapted to' force the pressure'rollers towards the. first namedrollers and into` engagement` with the workpiece, means 'adapted to move the template,

carriagesl *mounted on thefbase, rotary tools `in the carriages,v and followers von the carriages adapted to contact the template:

1l. A profiling machine comprising the combi'- nation set forth in claim 10, wherein the means adapted to force the pressure rollers is spring actuated. f

12. A profiling machine comprising the combination set forth in' cla-im 16, wherein the means adapted to force the pressure rollers is hydraulically actuated.

13. A profiling machine comprising a base, a

guide, supported thereby, rollerscarried by the guide adapted to bear againstzone'sde of a template, supports mounted in the base, pressure rollers mounted in pairs in the supports adapted to engage a workpiece secured to the opposite side ofthe template, means adapted to forcel the pressure rollers towards the first named rollers to engage the workpiece and template between them, means adapted to force each pair of pressure rollers towards one another to engage opposite sides of the workpiece and hold the latter for movement in a straight line, means adapted to move in template, carriages mounted onA the base, rotary tools mounted on the carriages, and followersron the carriages to coact with the template.

14. A profiling machine comprising the cornbination set forth in claim 13, wherein the vmeans adapted to force the pressure rollers towards one another is spring actuated.

.15. A profiling machine comprising the com' bination set forth in claim 13, wherein the means adapted to force the pressure rollers towards one another is hydraulically actuated.

16. A profiling machine comprising the combination set forth in claim13including equalizing' means connecting 'the means for moving each pair of pressurelrollers towards one another and the means for moving said pressure rollerstowards the first named rollers.

17.4 A profiling machine comprising a plurality of rollers adapted to bear against a. template having a workpiece secured thereto, other rollers.

adapted to contact the opposite side of the workpiece. means adapted to feed the template and workpiece between the rollers, carriages mounted for movement angularly to the path of movement of the template, means for moving the.

carriages towards one another, means tending to operate the last named means, followers on.

the carriages adapted to engage opposite sides of Athe template, and a rotary tool mounted in each carriage, said tools being adapted to operate on opposite sides of the workpiece.

18. A profiling machine comprising a plurality of rollers adapted to bear against 'a template having a workpiece secured thereto, other rollers 85 template by said spring actuated means, and

rotary tools mounted in said carriages.

19. A profiling machine comprising the combinationset forth in claim 1, wherein the rotary tools are angularly disposed to one another and are adapted to process the work simultaneously in dierent planes.

' 20. A proling machine comprising the coinlbination set forth in claim 1Q, whereinvthe rotary tools are stock removing cutters, and said base having a passage formedy therein extending from beneath the tools through which cuttings are adaptedto pass'- l v JOHANNES RODOFF. BERND ZINGSHEIM.. 

